summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/html/canvas/offscreen/reset/2d.reset.render.misc.w.html
blob: eef646df663992245b7c9728ec838386042fb0da (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<html class="reftest-wait">
<link rel="match" href="2d.reset.render.misc-expected.html">
<title>Canvas test: 2d.reset.render.misc</title>
<h1>2d.reset.render.misc</h1>
<p class="desc">check that canvas correctly renders rectangles after reset (states not covered by other tests)</p>
<canvas id="canvas" width="400" height="400">
  <p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id='myWorker' type='text/worker'>
  self.onmessage = function(e) {
    const canvas = new OffscreenCanvas(400, 400);
    const ctx = canvas.getContext('2d');

    ctx.fillStyle = "red";
    ctx.strokeStyle = "red";
    ctx.globalAlpha = 0.5;
    ctx.filter = "blur(2px)";

    ctx.reset();

    ctx.fillRect(0, 0, 100, 100);
    ctx.strokeRect(150, 150, 100, 100);

    const bitmap = canvas.transferToImageBitmap();
    self.postMessage(bitmap, bitmap);
  };
</script>
<script>
  const blob = new Blob([document.getElementById('myWorker').textContent]);
  const worker = new Worker(URL.createObjectURL(blob));
  worker.addEventListener('message', msg => {
    const outputCtx = document.getElementById("canvas").getContext('2d');
    outputCtx.drawImage(msg.data, 0, 0);
    document.documentElement.classList.remove("reftest-wait");
  });
  worker.postMessage(null);
</script>
</html>